Improved calk for horseshoes



UNITED STATES PATENT OEEICE.

ALBERT S. WILKINSON, OF PAWTUOKET, RHODE ISLAND.

IMPROVED CALK FOR HORSESHOES.

Specification forming part of Letters Patent No. 57,236, dated Ang-ust 14, 1866.

To all 'whom it may concern:

Be it known that I, ALBERT S. WILKINSON, of Pawtucket, county of Providence, State of Rhode Island, have invented an Adjustable Oalk for Horseshoes; and I do hereby declare that the following is a full, clear, and eXact description thereof, which will enable others skilled in the art to make and use the saine, reference being had tothe accompanying drawings, forming part of this specification, in which- Figure l is a side view of my adjustable calk for shoes for animals, and Fig. 2 is an end view of the same. Fig. 8 is a side view of a modification of Fig. l, and Fig. Liis an end view of the same.

Similar letters of reference in the different gures indicate corresponding parts.

This invention relates to a new and improved method for attaching calks to shoes for horses and other animals, so that they may be readily adjusted thereto at any time or renewed without the aid of an artiiicer or skilled mechanic, and may also be removed at pleasure.

The invention consists in forming a calk with a pair of arms extending upward and each terminating with an inward flange, the said arms reaching up one on the inside of the shoe-plate and the other upon the outside, so that their flanges may get a hold on the upper corners or edges ot' the shoe-plate for holding the ealk to the shoe, the calks being placed on the shoe by slipping them on at the heel of the shoe and then securing them firmly in place by means of keys or screws.

A in the accompanying plate of drawings is the shoe, and B B B b, Fig. l, is the calk, B B, Fig. 2, being the side arms, and b b the iianges of the same, which hold the ealk to the shoe. O c, Fig. 1is a key for confining the calk in position.

When this calk is to be used for'occasions or for cases of emergency only, then the shoe is fitted to the foot, each heel being beveled at the top corners, as shown in Fig. 2, and the flanges b b of the calk fitted thereto and the wedge or key G prepared. They are then laid aside and the shoe is nailed to the foot of the horse. These calks or calkins are then stowed or carried where they may be ready for use at any time and adjusted to the foot as occasion may require. This will often be found to be a very advantageous provision, as it not unf'requently occurs that slippery roads are encountered when blacksmiths relief is miles away, or when time is an item of importance, and in such cases these calks will prove useful and valuable. In cases where they are constantly used on the shoe, and when those in use become too much worn for efficiency, they may be replaced in a few moments by driving out the .key C and substituting new and sharper calks which are kept on hand for use.

These calks are made of steel, and may be manufactured by machinery at a trifiing cost.

Fig. 3 shows a modification, in which the iianges b I) engage with grooves D D, Fig. 4, in the sides ot' the shoe, and in which the key O is driven through a transverse hole in the rear of the calkin, as shown by end view of Fig. 4.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

An adjustable calkin, B B b, constructed and fastened substantially in the manner and for the purpose specified.

ALBERT S. WILKINSON.

Witnesses:

W. W. BLoDeE'IT, WILLIAM W. BEND. 

